Hi, I'm Saabbir.

I'm a frontend engineer in Dhaka. I build Shopify storefronts, make them faster, and run A/B tests to find out whether the things we believe about a store are actually true.

How I got here

I started taking paid work in 2016, while I was still at university studying computer science. It was the usual freelance route — Upwork and ThemeForest, turning PSDs and Figma files into HTML and CSS. Around fifty sites over two years, plus a stretch of email templates, which is a fast way to learn that the web you think you're building for is not the only web there is.

That work taught me CSS properly, mostly out of self-defence. When you build your fortieth site you start noticing that the problem isn't writing the styles, it's finding them again three months later. I still write CSS like someone who expects to come back to it.

In 2018 I joined Inspectiv in Los Angeles, from Dhaka, and spent three years on a security dashboard in React and Vue. Different problem entirely — state, data, and a twelve-hour time difference that meant if I didn't explain myself clearly in writing, nobody could unblock me until the next day.

Then in 2021 I moved to EchoLogyx and into Shopify, which is where I've been since. Themes first, then performance, then testing.

That's the short version of eight years: designs to markup, then applications, then stores, then measuring whether any of it worked.

What I work on now

Mostly Shopify Plus stores, where a small change to a product page is never actually small. Move one thing and you've touched page speed, the conversion funnel, the analytics, and whether the client's team can still edit it in the theme editor — all at once. That's the part I find genuinely interesting.

The other half is experiments. Setting them up, but more importantly deciding what's worth testing and reading the results without kidding yourself. Most tests don't win. A test programme where everything wins is a test programme that's measuring itself wrong.